Q: Can you swim or shower with the watch

Hi

No - Apple advises that you should not do either of those.

Apple Watch is splash and water resistant but it is not waterproof. You can, for example, wear and use Apple Watch during exercise, in the rain and while washing your hands. Submerging Apple Watch, however, is not recommended. The watch should also be dried if it gets wet.

Apple specifically advises, for example, that the following may affect the water resistance of Apple Watch and should be avoided:

• Exposing Apple Watch to pressurised water, including showering.
• Swimming or bathing with Apple Watch.
• Submerging Apple Watch in water for long periods of time.
• Wearing Apple Watch in the sauna or steam room.

Water resistance is not a permanent condition and Apple Watch cannot be rechecked or resealed for water resistance.

More information:

About Apple Watch water resistance - Apple Support

Apple Watch is only water resistance not waterproof.

I have jumped to a pool accidentally thanks god nothing happened its working perfect.